Which of the following illustrates a market phenomenon due to specialization?

Specialization refers to the process whereby individuals, businesses, or countries focus on the production of a limited range of goods or services to gain greater efficiency. When producers specialize, they become more adept at their specific tasks, leading to a significant increase in productivity. This heightened efficiency implies that less time and resources are wasted in production, ultimately allowing for a greater total output.

When businesses specialize, they can produce more at lower costs, which can lead to lower prices for consumers. Additionally, specialization fosters innovation and skill development, as workers become experts in their respective fields, further driving efficiency in production processes. As a result, the economy as a whole benefits, leading to improved standards of living.

The other options relate to economic concepts that do not directly illustrate specialization's positive effects on market dynamics. For instance, decreased consumer choice, high unemployment rates, and reduced global trade reflect potential negative consequences or unrelated factors in an economy and are not inherent outcomes of specialization. Therefore, the choice that best exemplifies a market phenomenon due to specialization is the one that highlights increased efficiency in production.